Crooked LCD display on new 20D!

Has anyone else experienced this? Bought new 20D eight days ago with 17-85 lens. Everything seems to work, except the LCD image is just slanted enough to be obvious. The upper left corner is lower than the upper right. When I zoom in the narrow black borders around the rectangle goes away, but the image is still slightly tilted.

I hope this does not affect the alignment of the viewfinder with the sensor, but can't really tell. Should I be concerned other than the look of the LCD?